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Add support for modules with "any" pointersize/endianness

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8122 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-08-24 14:02:14 +00:00
parent 030574fd35
commit bb43350e32
1 changed files with 16 additions and 6 deletions
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22
tools/llc/llc.cpp
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@ -68,8 +68,6 @@ int main(int argc, char **argv) {
// Allocate target machine. First, check whether the user has
// explicitly specified an architecture to compile for.
unsigned Config = (mod.isLittleEndian() ? TM::LittleEndian : TM::BigEndian)|
(mod.has32BitPointers() ? TM::PtrSize32 : TM::PtrSize64);
TargetMachine* (*TargetMachineAllocator)(unsigned) = 0;
switch (Arch) {
case x86:
@ -83,16 +81,28 @@ int main(int argc, char **argv) {
// the module. This heuristic (ILP32, LE -> IA32; LP64, BE ->
// SPARCV9) is kind of gross, but it will work until we have more
// sophisticated target information to work from.
if (mod.isLittleEndian() && mod.has32BitPointers()) {
if (mod.getEndianness() == Module::LittleEndian &&
mod.getPointerSize() == Module::Pointer32) {
TargetMachineAllocator = allocateX86TargetMachine;
} else if (mod.isBigEndian() && mod.has64BitPointers()) {
} else if (mod.getEndianness() == Module::BigEndian &&
mod.getPointerSize() == Module::Pointer64) {
TargetMachineAllocator = allocateSparcTargetMachine;
} else {
assert(0 && "You must specify -march; I could not guess the default");
// If the module is target independent, favor a target which matches the
// current build system.
#if defined(i386) || defined(__i386__) || defined(__x86__)
TargetMachineAllocator = allocateX86TargetMachine;
#elif defined(sparc) || defined(__sparc__) || defined(__sparcv9)
TargetMachineAllocator = allocateSparcTargetMachine;
#else
std::cerr << argv[0] << ": module does not specify a target to use. "
<< "You must use the -march option.\n";
return 1;
#endif
}
break;
}
std::auto_ptr<TargetMachine> target((*TargetMachineAllocator)(Config));
std::auto_ptr<TargetMachine> target((*TargetMachineAllocator)(0));
assert(target.get() && "Could not allocate target machine!");
TargetMachine &Target = *target.get();
const TargetData &TD = Target.getTargetData();